The principle of ISE (ion-selective electrode), a type of electrochemical sensor that uses membrane potential to measure the activity or concentration of ions in a solution. When it comes into contact with a solution containing fluoride (chloride) ions, a membrane potential directly related to the ion activity is generated at the interface between its sensitive membrane and the solution. Ion-selective sensors are also known as membrane sensors, featuring a special sensor membrane that selectively responds to fluoride (chloride) ions.

Instrument features

Backlit with sensor, featuring AUTO/ON/OFF backlit setting function

Automatic temperature compensation, password protection

Outdoor waterproof design suitable for wall mounting, disc mounting, and round tube installation

Large LCD display with operational status and special character display

Supply sensor automatic cleaning device contact points, program set output, the relationship between the point of the sensor's membrane and the fluoride ion content conforms to the Nernst equation.

Password protection available to prevent unauthorized personnel from making mistakes.

- Technical Specifications:

Measurement Range:F⁻: 0-20,000 mg/L, Cl⁻: 0-35,500 mg/L, Temperature: -30-130℃

Please provide the Chinese content to be translated. Certainly Degree:F⁻: 0.03%, Cl⁻: 0.01% mg/L; Temperature: ±0.1℃

Basic Error: Reading Error±2%; Temperature: ±0.3℃

Temperature Compensation:0～80.0℃，PT1000、NTC30KManual/ Automatic Temperature Compensation

Calibration Mode: Two or three-point, offset value correction(Choose from 13 segments)

Alarm Output:2 sets of relay control contacts: 3A 240VAC, 3A 28VDC; high/low alarm, lag arbitrary program setting.

Cleaning Contacts:ON 0 to 999 seconds/OFF 0 to 999 hours, one ON/OFF set;

Current Output: 2 ChannelsIsolated output0-20mA (load resistance < 1.5KΩ); 4-20mA (load resistance < 750Ω)

Ambient Temperature:-10～60℃；

Relative Humidity: ≤95% (non-condensing)

Protection Grade:IP65；

Power Supply:AC100~240V ，50/60HZ；